Xtreme Outback Heavy Duty 4x4 and SUV clutch kits offer improvements in performance and durability for a broad range of vehicles whilst retaining near factory-type drivability. The Xtreme Outback - Heavy Duty Organic Clutch Kit uses an upgraded pressure plate with increased clamping pressure compared with standard, between 20-40% depending on the demands of the individual vehicle, combined with an organic friction disc. Heavy Duty Organic Clutch Kit delivers substantial increases in performance and power holding capability whilst retaining near factory type drivability and is designed primarily for high performance road going vehicles, heavily loaded and also for towing vehicles.